1 [count] : a set of clothes that usually consists of a jacket and a skirt or pair of pants that are made out of the same material
▪ a tweed/wool suit ▪ He wore his gray suit to the job interview. — see color picture; see also business suit, leisure suit, lounge suit, pantsuit, sailor suit, shell suit, three-piece suit, trouser suit, two-piece suit, zoot suit 2 [count] : a set of clothes or protective covering that is worn for a special purpose or under particular conditions
▪ a gym suit ▪ a suit of armor — see also bathing suit, bodysuit, catsuit, jumpsuit, snowsuit, space suit, sweat suit, swimsuit, union suit, wet suit 3 : a process by which a court of law makes a decision to settle a disagreement or problem between people or organizations : lawsuit [count] ▪ a civil/criminal suit ▪ divorce/custody/paternity suits ▪ He filed/brought a suit [=started legal proceedings] against her. [noncount] ▪ He filed/brought suit [=started legal proceedings] against her. 4 [count] : all the cards that have the same symbol in a pack of playing cards
▪ The trump suit is hearts/clubs/diamonds/spades. 5 [count] informal + disapproving : a person who has an important job in an office and who wears a suit : a business executive
▪ She described her boss as “an empty suit.” [=a stupid and ineffective businessman] — usually plural ▪ Get back to work. The suits just walked in.